Rumours abound about the upcoming Christmas Special, with the latest doing the rounds being that it will see the return of an old villain: The Great Intelligence, last seen (so to speak; though not really, as it was a noncorporeal being) in 1968's The Web of Fear. Probably wisful thinking based on the villains we've seen so far being sinister snowmen and the Intelligence, of course, having been the master of the Abominable Snowmen (the ever popular Yeti), but on the other hand, could that 'GI' logo in the window behind the Doctor here be a clue? And is that the London Underground symbol he's resting his feet on...?

The Series 7 part two box set has apparently been released three weeks early in the USA due to a distributor's error, with the BBC now pleading with American fans not to spoiler this Saturday's episode by revealing details in advance. They have, however, released official pictures from the episode which appear to show both